|Movable focus chart system which I designed and built. I used structural aluminum for the frame and sled and suspended industrial track from the ceiling.|
|Attached a Kino Flo for lighting and designed the chart frame so it can be raised and lowered as needed.|
|Had to curve the end of the track so the chart could be stored out of the way against the wall.|
|Had to fiddle with the balance a lot so the sled moves freely. Note the counterbalance made of a ton of washers.|
Dirty job but worth it.